Home / 12,345.78-18,495.35-6,098.50

Finding the Fourth Proportional to 12,345.78, 18,495.35 and 6,098.50

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Solution

The fourth proportional to 12,345.78, 18,495.35 and 6,098.50 is: 9,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.78 : 18,495.35 = 6,098.50 : x
  2. Step 2: Convert to fraction form
    12,345.78/18,495.35 = 6,098.50/x
  3. Step 3: Cross multiply
    12,345.78x = 18,495.35 × 6,098.50
  4. Step 4: Simplify right side
    12,345.78x = 112,793,891.98
  5. Step 5: Solve for x
    x = 112,793,891.98/12,345.78
  6. Step 6: Final answer
    x = 9,136.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.